# Addition and Subtraction of Decimal Numbers (Primary 4)

MATHEMATICS

SMASE – ASEI PDSI METHOD

FIRST TERM

WEEK 11

PRIMARY 4

TOPIC – ADDITION AND SUBSTRACTION OF DECIMAL NUMBERS

LEARNING AREA

• Lesson One – Addition of decimal Numbers
• Lesson Two – Substraction of decimal Numbers
• Lesson Three – Addition and Subtraction of Decimal Numbers (Quantitative Reasonings)
• Lesson Four – Revision
• Test

TIME – 40 Minutes each.

LEARNING OUTCOME

By the end of the lesson, pupils should be able to –

1. add numbers involving three or more items.
2. subtract numbers involving three or more items.
3. solve quantitative reasonings.

RATIONALE

Addition is still the same process of adding two or more numbers together to find their total. While subtraction is to take a number or an amount away from another amount or number. No matter what your age, but addition and subtraction are and will always be a part of your life.

The concept of addition and subtraction of decimal numbers will enable the pupils to understand and appreciate the importance of addition and subtraction as part of life.

LEARNING MATERIALS

The teacher will teach the lesson with the aid of:

1. Flash cards.
2. Abacus.
3. Fraction chart.
4. Cardboard.

PREVIOUS KNOWLEDGE

Adding numbers together or subtracting one number from another is what we do everyday. The pupils can add up numbers and subtract another numbers.

REFERENCE MATERIALS

1. 9 – Years Basic Education Curriculum
2. Lagos State Scheme of work
3. New Method Mathematics Book
4. All Relevant Materials
5. Online Materials

LESSON PLAN/DEVELOPMENT

ASEI PDSI LESSON NOTES